@media screen and (min-width:751px){
  .def_lst{display:flex;flex-wrap: wrap;justify-content: space-around;margin:2rem 0px;}
.def_lst dt{flex-basis:15%;max-width:15%;padding:10px 0px;border-bottom:1px dashed #000;}
.def_lst dd{flex-basis:85%;max-width:85%;padding:10px 0px;border-bottom:1px dashed #000;}
}
	
@media screen and (max-width:750px){
  .def_lst dt{padding-top:1rem;margin-bottom:10px;}
    .def_lst dd{border-bottom:1px dashed #000;padding-bottom:1rem;}
  	
}